'use strict';
let fs = require("fs");
//读取图片
fs.readFile("/Users/zhaojunwei/work/教程/java基础思维导图.png", function (err, data) {
    if (err) {
        console.log(err);
    } else {
        console.log(data);
        console.log(data.toString("utf-8"));
    }
});
